Thick slices of ice cold watermelon full of juice, plus a squeeze of lemon: that is how the cocktail begins, and you do not even have to pay at the bar. Tropical fruits come in right after, sweet and playful, like a summer playlist on repeat.

White rum at the base adds a grown up clink to the whole thing, without making your head spin. Light it when friends come over for drinks on the balcony, or run a bath with music and pretend you are on a Caribbean beach, sand still stuck to your ankles.